The left ventricle of the human heart ... receives blood from the left atrium
O receives blood from the lungs
contains oxygenated blood
O A, B and C are all true
A, B and Care all false

Which statements are true of a scientific theory but not a hypothesis

The deserts of the sahara and australia are associated with

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.